<style type="text/css">  
  
.con_div{  
width:400px;  
height:300px;  
border:1px solid #777;  
text-align:center;  
display:table-cell;  
vertical-align:middle;  
background:white;  
color:#fff  
}  
/*FOR IE*/  
.fixie{  
width:0;  
height:100%;  
display:inline-block;  
vertical-align:middle;  
}  
  
</style>  
   
<div class="con_div">  
<span class="fixie">sssssssssssssssssss
ssssssssss
ssssssssssssss</span>  
  xxxxxxxxxxx
  
</div>  